Custom solutions, unique manufacturing process & quality, crafted by talent.
Mr. Cai
Welcome to the FAQs of Dongji. As a leader in <strong>Precision Sheet Metal Fabrication</strong>, our Chairman and expert engineering team have compiled answers to your most common questions regarding our Industry 4.0 manufacturing capabilities.
Frequently Asked Questions about Precision Sheet Metal Fabrication

Are you a trading company or a direct manufacturer?
Yes, we are a direct manufacturer. We operate a 30,000 m² state-of-the-art facility in Jiangmen, Guangdong, backed by 14 years of manufacturing excellence. We provide true end-to-end, one-stop solutions from raw sheet metal to fully assembled smart devices.
What types of manufacturing services do you offer?
We offer highly flexible partnership models tailored to your business needs, including OEM, ODM, and JDM services. Whether you need exact manufacturing based on your designs (OEM) , ready-to-market white-label products (ODM) , or collaborative co-development for innovative smart equipment (JDM), we have you covered.
Can you manufacture custom designs based on our CAD drawings?
Absolutely. You can send us your design blueprints (such as .STEP, .IGES, .DWG) for a comprehensive evaluation. Powered by world-class equipment like German TRUMPF and Japan AMADA laser cutting machines , we maintain a strict tolerance accuracy of up to 0.1mm.
What materials and thickness ranges can your factory process?
We process a wide variety of materials, including Mild Steel, Stainless Steel, Galvanized Steel, Aluminum, Copper, and Acrylic. Our advanced machinery allows us to effortlessly handle material thicknesses ranging from 0.2mm up to 30.0mm.
Does your facility meet international quality standards?
Yes, our Precision Sheet Metal Fabrication processes are fully certified. We are an ISO9001:2015 certified manufacturer and have been fully audited and approved by SGS. Furthermore, the smart equipment we produce can be certified to meet rigorous global compliance standards, including UL, ETL, CE, FCC, and KC.
What is your Minimum Order Quantity (MOQ)? Can I order just one prototype?
Yes, it’s completely fine to order just one set for prototyping and testing. If this is your first time importing or developing smart equipment, our engineering and sales team will gladly guide you through the entire process.
What is your typical production lead time?
For standard orders under 50 sets, our production time typically varies from 15 to 30 days. For larger volumes, complex ODM/JDM projects, or customized tooling, please send us an inquiry for a precise production schedule.
What shipping methods do you recommend?
Due to the size and weight of metal enclosures and smart vending machines, we usually recommend sea freight as it is the most cost-effective option. Express or air freight is available for urgent prototypes, but it will cost significantly more. Please contact us for accurate shipping cost calculations.
What payment systems can be integrated into your smart vending machines?
We offer versatile smart payment integrations. Depending on your target market, we can equip the machines with coin acceptors, bill validators, and credit card payment systems.
How many products can I sell in one vending machine?
The internal capacity varies entirely based on your specific product dimensions and packaging. Please provide us with your product specifications, and our design team will customize the tray structure to maximize your selling capacity.
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Your Expert Partner for Precision Sheet Metal Fabrication
When seeking answers about industrial manufacturing, understanding the capabilities behind Precision Sheet Metal Fabrication is essential. Dongji Intelligent Equipment operates a wholly-owned 30,000㎡ Industry 4.0 integrated manufacturing facility, equipped with world-class Salvagnini flexible production lines. With over 15 years of industry experience, we ensure that every custom enclosure, chassis, and structural component meets the highest global standards. Our engineering team routinely achieves ultra-precise tolerances within 0.1mm, making us the go-to partner for complex OEM, ODM, and JDM projects.
Quality and efficiency define our approach to Precision Sheet Metal Fabrication. We provide an exclusive 24-hour rapid quoting service to accelerate your product's time-to-market. Our rigorous quality control processes are certified under ISO9001, ISO13485, and AS9100D systems. By utilizing advanced Hexagon Coordinate Measuring Machines (CMM) and automated optical inspection, we guarantee zero-defect delivery. Whether you are producing smart terminal equipment or outdoor new energy storage solutions, our dedicated digital headquarters system ensures full traceability from raw material selection to final mass production.
We have successfully empowered over 500+ B2B enterprises globally by offering cost-effective and highly reliable Precision Sheet Metal Fabrication services. Our commitment to technical patents and continuous innovation allows us to tackle the most demanding structural designs. If our FAQs haven't answered all your operational questions, our technical support team is available to provide in-depth Design for Manufacturability (DFM) consultations tailored to your unique supply chain needs.